The ER70S-6 welding wire belongs to the gas shielded welding wire of copper plated low alloy steel, which adopts CO₂ or argon-rich as the shielded gas for welding. It has excellent welding process performance, stable arc combustion, less spatter, beautiful weld formation, small sensitivity to metal porosity in weld, good welding process in all locations, and can be suitable for a wide range of welding current.